media HYUNDAI I20 2023 Service Manual

Driver assistance system
7-148

[The pedestrian is near the rear edge of
the vehicle

[The pedestrian is not standing upright

[The pedestrian is either very short or
very tall for the function to detect

[The pedestrian or cyclist is wearing
clothing that easily blends into the
background, making it difficult to
detect

[The pedestrian is wearing clothing that
does not reflect ultrasonic waves well

[Size, thickness, height, or shape of
the object does not reflect ultrasonic
waves well (e.g., pole, bush, curbs,
carts, edge of a wall, etc.)

[The pedestrian or the object is moving

[The pedestrian or the object is very
close to the rear of the vehicle

[A wall is behind the pedestrian or the
object

[The object is not located at the rear
centre of your vehicle

[The object is not parallel to the rear
bumper

[The road is slippery or inclined

[The driver backs up the vehicle
immediately after shifting to R
(Reverse)

[The driver accelerates or circles the
vehicleReverse Parking Collision-Avoidance
Assist may unnecessarily warn the driver
or assist with braking even if there are
no pedestrians or objects under the
following circumstances:

[Any non-factory equipment or
accessory is installed

[Your vehicle is unstable due to an
accident or other causes

[Bumper height or rear ultrasonic
sensor installation has been modified

[Your vehicle height is low or high
due to heavy loads, abnormal tyre
pressure, etc.

[Rear view camera or the rear
ultrasonic sensor(s) is stained with
foreign material, such as snow, dirt,
etc.

[The pattern on the road is mistaken for
a pedestrian

[There is shadow or light reflecting on
the ground

[Pedestrians or objects are around the
path of the vehicle

[Objects generating excessive noise,
such as vehicle horns, loud motorcycle
engines or truck air brakes, are near
your vehicle

[Your vehicle is backing towards a
narrow passage or parking space

[Your vehicle is backing towards an
uneven road surface, such as an
unpaved road, gravel, bump, gradient,
etc.

[A trailer or carrier is installed on the
rear of your vehicle

[An ultrasonic sensor with similar
frequency is near your vehicle

8-4
Emergency situations
IN CASE OF AN EMERGENCY WHILST DRIVING
If the engine stalls whilst driving

[Reduce your speed gradually, keeping
a straight line. Move cautiously off the
road to a safe place.

[Turn on your hazard warning flasher.

[Try to start the engine again. If your
vehicle will not start, we recommend
that you contact a HYUNDAI
authorised repairer.
If the engine stalls at a
crossroad or crossing
If the engine stalls at a crossroads or
crossing, if safe to do so, move the shift
lever to the N (Neutral) position and then
push the vehicle to a safe location.
If you have a flat tyre whilst
driving
If a tyre goes flat whilst you are driving:

[Take your foot off the accelerator
pedal and let the vehicle slow down
whilst driving straight ahead. Do
not apply the brakes immediately or
attempt to pull off the road as this
may cause loss of vehicle control
resulting in an accident. When the
vehicle has slowed to such a speed
that it is safe to do so, brake carefully
and pull off the road. Drive off the
road as far as possible and park on
firm, level ground. If you are on a
divided highway, do not park in the
median area between the two traffic
lanes.

[When the vehicle is stopped, press
the hazard warning flasher button,
move the shift lever into P (Park, for
automatic transmission/dual clutch
transmission vehicle) or neutral
(for manual transmission vehicle),
apply the parking brake, and place
the ignition switch in the LOCK/OFF
position.

[Have all passengers get out of the
vehicle. Be sure they all get out on the
side of the vehicle that is away from
traffic.

[When changing a flat tyre, follow
the instructions provided later in this
chapter.

8-6
Emergency situations
Jump starting can be dangerous if done
incorrectly. Follow the jump starting
procedure in this section to avoid serious
injury or damage to your vehicle. If in
doubt about how to properly jump start
your vehicle, we strongly recommend
that you have a service technician or
towing service do it for you.
WARNING
To prevent SERIOUS INJURY or DEATH
to you or bystanders, always follow
these precautions when working near
or handling the battery:
Always read and follow
instructions carefully when
handling a battery.
Wear eye protection designed
to protect the eyes from acid
splashes.
Keep all flames, sparks, or
smoking materials away from
the battery.
Hydrogen is always present in
battery cells, is highly
combustible, and may explode
if ignited.
Keep batteries out of reach of
children.
Batteries contain sulfuric acid
which is highly corrosive. Do
not allow acid to contact your
eyes, skin or clothing.
If acid gets into your eyes, flush your
eyes with clean water for at least 15
minutes and get immediate medical
attention. If acid gets on your skin,
thoroughly wash the area. If you
feel pain or a burning sensation, get
medical attention immediately.

[When lifting a plastic-cased battery,
excessive pressure on the case may
cause battery acid to leak. Lift with a
battery carrier or with your hands on
opposite corners.

[Do not attempt to jump start your
vehicle if your battery is frozen.

[NEVER attempt to recharge the
battery when the vehicle’s battery
cables are connected to the battery.

[The electrical ignition system works
with high voltage. NEVER touch these
components with the engine running
or when the ignition switch is in the
ON position.

[Do not allow the (+) and (-) jumper
cables to touch. It may cause sparks.

[The battery may rupture or explode
when you jump start with a low or
frozen battery.
NOTICE
To prevent damage to your vehicle:

[Only use a 12-volt power supply
(battery or jumper system) to jump
start your vehicle.

[Do not attempt to jump start your
vehicle by push-starting.
JUMP STARTING

8-9
08
If your temperature gauge indicates
overheating, you experience a loss of
power, or hear loud pinging or knocking,
the engine may be overheating. If this
happens, you should:
1. Pull off the road and stop as soon as it
is safe to do so.
2. Place the shift lever in P (Park, for
automatic transmission/dual clutch
transmission vehicle) or neutral (for
manual transmission/dual clutch
transmission vehicle) and set the
parking brake. If the air conditioning is
ON, turn it OFF.
3. If engine coolant is running out under
the vehicle or steam is coming out
from the bonnet, stop the engine. Do
not open the bonnet until the coolant
has stopped running or the steaming
has stopped. If there is no visible
loss of engine coolant and no steam,
leave the engine running and check
to be sure the engine cooling fan is
operating. If the fan is not running,
turn the engine off.
WARNING
Whilst the engine is
running, keep hands,
clothing and tools away
from the moving parts such
as the cooling fan and drive
belt to prevent serious
injury.4. Check for coolant leaking from the
radiator, hoses or under the vehicle. (If
the air conditioning had been in use, it
is normal for cold water to be draining
from it when you stop.)
5. If engine coolant is leaking out, stop
the engine immediately and we
recommend that you call a HYUNDAI
authorised repairer for assistance.
WARNING
NEVER remove the radiator
cap or the drain plug whilst
the engine and radiator are
hot. Hot coolant and steam
may blow out under
pressure, causing serious injury.
Turn the engine off and wait until the
engine cools down. Use extreme care
when removing the radiator cap. Wrap
a thick towel around it, and turn it
counterclockwise slowly to the first
stop. Step back whilst the pressure
is released from the cooling system.
When you are sure all the pressure
has been released, press down on the
cap, using a thick towel, and continue
turning counterclockwise to remove it.
IF THE ENGINE OVERHEATS

8-13
08
Low tyre pressure
warning light
Low tyre pressure position and
tyre pressure telltale
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When the tyre pressure monitoring
system warning indicators are
illuminated and a warning message
displayed on the cluster LCD display,
one or more of your tyres is significantly
under-inflated. The Low Tyre Pressure
Position Telltale will indicate which
tyre is significantly underinflated by
illuminating the corresponding position
light.
If either telltale illuminates, immediately
reduce your speed, avoid hard cornering
and anticipate increased stopping
distances. You should stop and check
your tyres as soon as possible. Inflate the
tyres to the proper pressure as indicated
on the vehicle’s placard or tyre inflation
pressure label located on the driver’s
side centre pillar outer panel.If you cannot reach a service station or
if the tyre cannot hold the newly added
air, replace the low pressure tyre with
the spare tyre.
The Low Tyre Pressure Telltale will
remain on and the TPMS Malfunction
Indicator may blink for one minute
and then remain illuminated (when
the vehicle is driven approximately 10
minutes at speed above 15.5 mph (25
km/h)) until you have the low pressure
tyre repaired and replaced on the
vehicle.
CAUTION
In winter or cold weather, the Low Tyre
Pressure Telltale may be illuminated if
the tyre pressure was adjusted to the
recommended tyre inflation pressure
in warm weather. It does not mean
your TPMS is malfunctioning because
the decreased temperature leads to a
proportional lowering of tyre pressure.
When you drive your vehicle from a
warm area to a cold area or from a cold
area to a warm area, or the outside
temperature is greatly higher or lower,
you should check the tyre inflation
pressure and adjust the tyres to the
recommended tyre inflation pressure.
WARNING
Low pressure damage
Significantly low tyre pressure makes
the vehicle unstable and can contribute
to loss of vehicle control and increased
braking distances.
Continued driving on low pressure
tyres can cause the tyres to overheat
and fail.

8-15
08
If the indicators do not extinguish after
a few minutes, it is recommended to
contact the nearest authorised HYUNDAI
dealer.
Each wheel is equipped with a tyre
pressure sensor mounted inside the tyre
behind the valve stem (except for the
spare tyre). You must use TPMS specific
wheels. It is recommended that you
always have your tyres serviced by a
HYUNDAI authorised repairer.
You may not be able to identify a tyre
with low pressure by simply looking at it.
Always use a good quality tyre pressure
gauge to measure. Please note that a
tyre that is hot (from being driven) will
have a higher pressure measurement
than a tyre that is cold.
A cold tyre means the vehicle has been
sitting for 3 hours and driven for less
than 1 mile (1.6 km) in that 3 hour period.
Allow the tyre to cool before measuring
the inflation pressure. Always be sure
the tyre is cold before inflating to the
recommended pressure.
WARNING

[The TPMS cannot alert you to severe
and sudden tyre damage caused by
external factors such as nails or road
debris.

[If you feel any vehicle instability,
immediately take your foot off
the accelerator, apply the brakes
gradually with light force, and slowly
move to a safe position off the road.
WARNING
Tampering with, modifying, or disabling
the Tyre Pressure Monitoring System
(TPMS) components may interfere
with the system’s ability to warn the
driver of low tyre pressure conditions
and/or TPMS malfunctions. Tampering
with, modifying, or disabling the Tyre
Pressure Monitoring System (TPMS)
components may void the warranty for
that portion of the vehicle.
WARNING

[Do not modify the vehicle; it may
interfere with the TPMS function.

[The wheels on the market do not
have a TPMS sensor.

[For your safety, we recommend that
you use parts for replacement from a
HYUNDAI authorised repairer.

[If you use the wheels on the market,
use a TPMS sensor approved by a
HYUNDAI dealer or the equivalent
approved for your vehicle. If your
vehicle is not equipped with a TPMS
sensor or TPMS does not work
properly, you may fail the periodic
vehicle inspection conducted in your
country.

8-30
Emergency situations
ODN8079020
5. Insert the sealant bottle into the
housing (5) of the compressor so that
the bottle is upright.
6. Ensure that the compressor is
switched off, position 0.
OBC3080011
NOTICE
Securely install the sealant filling hose
to the valve. If not, sealant may flow
backward, possibly clogging the filling
hose.
OBC3N080005
7. Connect between compressor and the
vehicle power outlet using the cable
and connectors (4).
8. With the engine start/stop button
position on or ignition switch position
on, switch on the compressor and let
it run for approximately 5~7 minutes to
fill the sealant up to proper pressure.
(refer to immediately chapter 2).
The inflation pressure of the tyre
immediately filling is unimportant and
will be checked/corrected later.
Be careful not to overinflate the tyre
and stay away from the tyre whilst
filling it.
NOTICE
- Tyre pressure
Do not attempt to drive your vehicle
if the tyre pressure is below 29
PSI(200kpa). This could result in an
accident due to sudden tyre failure.
9. Switch off the compressor.
10. Detach the hoses from the sealant
bottle connector and from the tyre
valve.
Return the Tyre Mobility Kit to its storage
location in the vehicle.

8-31
08
WARNING
Carbon monoxide
Do not leave your vehicle running in
a poorly ventilated area for extended
periods of time.
Carbon monoxide poisoning and
suffocation can occur.
Distributing the sealant
11. Immediately drive approximately
4~6miles (7~10km or, about 10 mins)
to evenly distribute the sealant in the
tyre.
Do not exceed a speed of 50 mph (80
km/h). If possible, do not fall below a
speed of 12 mph (20 km/h).
Whilst driving, if you experience any
unusual vibration, ride disturbance or
noise, reduce your speed and drive with
caution until you can safely pull off the
vehicle on the side of the road.
Call for road side service or towing.
When you use the Tyre Mobility Kit, the
tyre pressure valve and wheel may be
damaged by sealant, remove the sealant
stained. We recommend that the tyre
pressure valve and wheel be inspected
by an authorized HYUNDAI dealer.

Checking the tyre inflation
pressure
1. After driving approximately 4 ~6miles
(7~10km or about 10min), stop at a
safety location.
2. Connect connection hose (10) of the
compressor directly to the tyre valve.
3. Plug the compressor power cord into
the vehicle power outlet.
4. Adjust the tyre inflation pressure to
the recommended tyre inflation.
With the ignition switched on, proceed
as follows.
- To increase the inflation pressure :
Switch on the compressor, position
I. To check the current inflation
pressure setting, briefly switch off
the compressor.
i Information
The pressure gauge may show higher than
actual reading when the compressor is
running. To get an accurate tyre pressure,
the compressor needs to be turned off.
NOTICE
- Tyre pressure valve
We recommend that you use the
sealant of tyre mobility kit from a
HYUNDAI authorised repairer. The
sealant on the tyre pressure valve and
wheel should be removed when you
replace the tyre with a new one and
we recommend that the tyre pressure
valve be inspected by an authorized
HYUNDAI dealer.

9-11
09
Vacuum crankcase ventilation
hoses (if equipped)
Inspect the surface of hoses for
evidence of heat and/or mechanical
damage. Hard and brittle rubber,
cracking, tears, cuts, abrasions, and
excessive swelling indicate deterioration.
Particular attention should be paid to
examine those hose surfaces nearest to
high heat sources, such as the exhaust
manifold.
Inspect the hose routing to assure that
the hoses do not come in contact with
any heat source, sharp edges or moving
component which might cause heat
damage or mechanical wear. Inspect
all hose connections, such as clamps
and couplings, to make sure they are
secure, and that no leaks are present.
Hoses should be replaced immediately if
there is any evidence of deterioration or
damage.
Air cleaner filter
We recommend that the air cleaner filter
be replaced by a HYUNDAI authorised
repairer.
Spark plugs
(for petrol engine)
Make sure to install new spark plugs of
the correct heat range.
When assembling parts, be sure to
wipe out foreign substances inside
and outside of the boot bottom of the
ignition coil and the insulator of the
spark plug with a soft cloth to prevent
contamination of the spark plug
insulator.
WARNING
Do not disconnect and inspect spark
plugs when the engine is hot. You may
burn yourself.
Cooling system
Check the cooling system parts, such
as radiator, coolant reservoir, hoses and
connections for leakage and damage.
Replace any damaged parts.
Engine coolant
The coolant should be changed at the
intervals specified in the maintenance
schedule.
Manual transmission fluid/iMT
system actuator fluid
(if equipped)
Inspect the Manual transmission fluid/
iMT system actuator fluid according to
the maintenance schedule.
Automatic transmission fluid
(if equipped)
Automatic transmission fluid should
not be checked under normal usage
conditions.
We recommend that the automatic
transmission fluid is changed by a
HYUNDAI authorised repairer according
to the maintenance schedule.
i Information
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9-12
Maintenance
Dual clutch transmission fluid
(if equipped)
Inspect the dual clutch transmission
fluid according to the maintenance
schedule.
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Visually check for proper installation,
chafing, cracks, deterioration and any
leakage. Replace any deteriorated or
damaged parts immediately.
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Check brake/clutch fluid level in the
brake fluid reservoir. The level should
be between “MIN” (Minimum) and
“MAX” (Maximum) marks on the side
of the reservoir. Use only hydraulic
brake/clutch fluid conforming to DOT 4
specification.
Parking brake
Inspect the parking brake system
including the parking brake lever and
cables.
Rear brake drums and linings
(if equipped)
Check the rear brake drums and linings
for scoring, burning, leaking fluid,
broken parts, and excessive wear.
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Check the pads for excessive wear, discs
for run out and wear, and calipers for
fluid leakage.
For more information on checking the
pads or lining wear limit, refer to the
HYUNDAI web site.
(http://service.hyundai-motor.com)
Suspension mounting bolts
Check the suspension connections for
looseness or damage. Retighten to the
specified torque.
Steering gear box, linkage &
boots/lower arm ball joint
With the vehicle stopped and engine
off, check for excessive free-play in the
steering wheel.
Check the linkage for bends or damage.
Check the dust boots and ball joints
for deterioration, cracks, or damage.
Replace any damaged parts.
Drive shafts and boots
Check the drive shafts, boots and
clamps for cracks, deterioration, or
damage. Replace any damaged parts
and, if necessary, repack the grease.
Air conditioning refrigerant/
compressor
Check the air conditioning lines and
connections for leakage and damage.